Bottle-stopper.



No. 794.478. PATENTED JULY 11, 1905. W. T. ABBOTT BOTTLE STOPPER.

APPLIUATION FILED SEPT. 10. 1904.

UNITED STATES Patented July 11, 1905.

PATENT OFFICE.

BOTTLE-STOPPER.

SPECIFICATION forming part of Letters Patent No. 794,478, dated July 11, 1905. Application filed September 10, 1904. Serial No. 223,944.

To all whom it may concern:

Be it known that I, WILLIAM T. ABBOTT, of Boston, in the county of Suffolk and State .of Massachusetts, have invented certain new and useful Improvements in Bottle-Stoppers, of which the following is a specification.

This invention relates to stoppers intended to withstand the action ofammonia and other chemicals; and it consists in the improvements hereinafter described and claimed.

Of the accompanying drawings, Figure 1 represents a perspective view of a stopper embodying my invention. Fig. 2 represents a sectional View of the same. Fig. 3 represents a sectional view showing the stopper inserted in a bottle-neck.

The same reference characters indicate the same parts in all the figures.

In the drawings, a represents a bottle-stopper composed, preferably, of cork, although any other suitable inexpensive and elastic material the equivalent of cork as a bottle-stopper may be employed. To the inner end of the stopper is secured by cement or otherwise a thin flexible sheet 6 of rubber. The sheet is preferably circular in shape and is of such size as to project outwardly in all directions from the periphery of the stopper, thus forming a thin flexible rubber flange surrounding the inner end of the stopper. When the stopper is inserted in a bottle-neck 0, the rubber flange is conformed to the periphery of the stopper-body and is so compressed between the periphery of the stopper and the inner surface of the bottle-neck as to form a continuous liquid-tight packing between the stopper-body and the neck, the elasticity of the rubber permitting the compression of the overlapping folds resulting from the conformation of the flange to the periphery of the stopper. The rubber employed should be pure in quality and relatively free from foreign matter in order that the maximum elasticity and durability may be obtained.

In connecting the stopper (0 to the sheet Z) I press the inner end of the stopper slightly into the sheet, so as to cause the sheet to adhere to the periphery of the stopper at the extreme inner end of the latter, as shown at Z) in Fig. 2, the rubber flange being thus dished or inclined upwardly and crimped, as shown in Fig. 1, and thus adapted to be more readily conformed to the periphery of the stopper and inserted therewith into the bottle-neck than would be the case if the flange were flat.

I claim- A cork stopper having a thin flexible sheet of rubber cemented to its inner end and projecting outwardly from its periphery, the projecting portion constituting a flexible flange a portion of which is cemented to the periphery of the stopper to crimp or wave the flange and incline it upwardly from the inner end of the stopper.

In testimony whereof I have aflixed my signature in presence of two witnesses.

WILLIAM T. ABBOTT. Witnesses:

G. F. BROWN, E. BATOHELDER. 

